On 8/19/2019 3:22 PM, Brian Goetz wrote:
I don't have a strong opinion on whether "sealed but no permitted
subtypes" is a habitable space separate from "final", but I'm fine to
say "that means final" for most purposes. Not sure what reflection
should say; is it OK for a type that is clearly sealed in its
declaration to report back as "not sealed, but final?" Or does
that mean it is both sealed _and_ final (an empty PermittedSubtypes
attribute, plus an ACC_FINAL)?
Are you referring here to a source declaration such as `sealed interface
X {}` where, per Vicente, X.class has ACC_FINAL set? I think
X.class.isSealed() should return true and X.class.isFinal() [simplifying
for space] should return false. Has there been any discussion of
reclaiming ACC_SUPER, 0x0020, for ACC_SEALED in v58 class files? Using
an empty attribute to denote sealing is pretty ugly.
Alex
